Gear wise, you should ditch the +10 EXP gems and go stam. Also the shoulder and cloak enchants should be changed to the PVP for the shoulders and + 225 armor for the cloak.
Your PROT spec is one of the common ones, though I prefer the shield mitigation from the 5/5 sh spec. This is kinda helpful in ICC.
Your glyphs confuse me. You should be using more def type glyphs, or related cooldown ones.
Your gear ( once re gem'd and re-chanted ) is not an issue.
Can you describe your " rotation " or really just what your typical MOB pull is like.
Are you marking ? Is the DPS giving you a sec to actually generate threat ? Are you rotating targets ?